Name	The value
Designation GOST Cyrillic	10Х13Г12БС2Н2Д2
Designation GOST Latin	10X13G12BC2H2D2
Transliteration	10H13G12BS2N2D2
By chemical elements	10Cr13Mn12NbС2Н2Cu2

Name	The value
Designation GOST Cyrillic	ДИ59
Designation GOST Latin	DI59
Transliteration	DI59
By chemical elements	CuИ59

Description

10Х13Г12БС2Н2Д2 steel is used: for the manufacture of seamless cold, warm, hot-wrought, including hot-pressed and hot-pressed reduced pipes for steam boilers and pipelines, installations with high and supercritical steam parameters.

Note

Bromomalonate austenitic steel.

Standards

Name	Code	Standards
Blanks. Of the workpiece. Slabs	В31	TU 14-1-2870-80
Steel pipes and fittings to them	В62	TU 14-3Р-55-2001

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	Nb
TU 14-3Р-55-2001	0.06-0.1	≤0.02	≤0.03	12-13.5	11.5-13	1.8-2.2	1.8-2.5	Rest	2-2.5	0.6-1

Fe is the basis.
According to TU 14-3R-55-2001, a technological addition of rare earth elements is possible to improve the quality of the metal. The content of residual elements is according to GOST 5632. Zirconium is introduced into steel to 0.10%, cerium to 0.080%, titanium to 0.10%, boron up to 0.0030%, and chemical analysis is not determined. The presence of up to 0.25% aluminum in steel is allowed.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	y, %
Seamless pipes for steam boilers and pipelines according to TU 14-3P-55-2001. Austenization at 1060-1080 °C, air cooling
	≥176	-	-	-
-	≥216	≥588	≥40	≥50
	≥161	-	-	-
	≥157	-	-	-

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
y	The relative narrowing

Steel 10Х13Г12БС2Н2Д2 (ДИ59)

Designation